Answer:
b) transcription, mRNA
Explanation:
Transcription is a process in which mRNA is produced from DNA. RNA polymerase is the enzyme that is required to make mRNA in the transcription process.
So as a peptide called alpha-amanitin kills cells by blocking the functioning of RNA polymerase therefore mRNA will not be produced because the transcription process can not proceed without RNA polymerase. So as mRNA will not produce, no protein will be produced to support the cell's functioning. So the cell will die.
Therefore the toxin will prevent transcription and the production of mRNA.
One population, called hematopoietic stem cells, forms all the types of blood cells in the body. A second population, called bone marrow stromal stem cells (also called mesenchymal stem cells, or skeletal stem cells by some), were discovered a few years later. BAMMMM!!!
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetah.
Limiting factors are those factors in the ecosystem which can limit the growth of population of a species in an ecosystem. Predation and competition are two limiting factors in the ecosystem that can decrease or extinct the population of a species. Predation is a limiting factor in which predatory organisms are dependent upon a prey organisms. This is natures way of limiting the surplus growth of prey population and to maintain a balance in ecological community. Competition is a limiting factor in which one or more same or different type of organisms compete for the same resource in an ecosystem. The one which is more competitive will derive those resources other than the one which is less competitive.
According to the given data, it is evident that the population decline in predator cheetah and lion populations because of decline in zebra population but the decline in cheetah population is more than that of lion. It explains the fact that lion is more competitive than cheetah in deriving the food which is already limited. Therefore, lion outcompete cheetah.
Answer:
Read the explanation section.
Explanation:
1. Will the DNA which contain cancer can passed from one generation to another generation?
2. What will be happen to the next generation if parents have extra chromosomal DNA?
3. Will genes of AIDS can transfer to the next generation because of heredity?
<span>Melanin helps protect the skin against effects of the sun such as skin cancers and premature aging. In African American skin, melanin provides a sun protection factor (SPF) equivalent to 13.4 compared to 3.4 in white skin and thus the former have lower incidences of skin disorders associated with exposure to the sun.</span>